DE19605410C2 - Device for taking up and pulling off a flexible, strand-like material - Google Patents

Abstract

The device has a drive mechanism which exerts a force upon the optical fibres or cable (1) after it leaves a storage drum (2) and before it leaves a housing (4) or storage frame (33). The drive mechanism is in the form of a continuous drive belt (18) circulating via at least two belt pulleys. At least one of the belt pulleys is rotationally fixed to the rotation axle and at least one belt pulley is driven. The elongated material is arranged over part of the circumference of at least one pulley between the pulley and drive belt.

Description

The invention relates to a device for receiving and removing a flexible, strand-like material, in particular one in cross section preferably circular push and pull wire, in particular made of fiberglass, preferably for pulling in cables, light guides and / or other lines in cable or line protection tubes or Empty pipes, with a storage drum, on the inner wall of which creates flexible material, and a housing or a storage rack, in which an axis of rotation for rotatable mounting of the storage drum is arranged; the strand-like material at least over one Section by means of a non-positively acting drive means is drivable and the drive direction parallel to the plane of the direction of rotation Storage drum runs.

DE 30 31 570 C3, for example, is a generic device for picking up and pulling off a flexible, strand-like Known material. This known device has a rotatably mounted Storage drum, on the inner jacket of the flexible material creates. Furthermore, this previously known device has a housing in which the storage drum is rotatably arranged.

In addition, devices are known in which the flexible, strand-like material in a cage-like receiving device is added or subtracted from this. Here, the cage-like Storage device on a central axis, which is also the axis of rotation which several, generally at least three, substantially U-shaped Rod elements are attached, the storage device in the axial direction running webs lie on a circular path. This is due to these bridges flexible, strand-like material, so that it through its Intrinsic tension and the striving for the material  to keep stretched, on webs and between legs of the U-shaped rods abut. The cage-like storage device device is rotatably mounted in a storage rack and is especially used when a very long bend elastic, strand-like material with high weight should be included and subtracted. In contrast, serves the device described in DE 30 31 570 C3 ins particular the inclusion of strand-like material in one Length range from approximately 20 to 30 meters. Here is the absorption capacity of the given size depending on the device.

The recording devices described above and peeling off a flexible, strand-like mate rials have proven themselves in practice. With increasing Length of the bending elastic to be absorbed and subtracted However, it has been shown that that the pulling and winding of the strand-like mate rials requires great strength.  

Furthermore, from the Patent Abstracts of Japan dated May 30, 1995, no. 07137943 A discloses a device in which the strand-like material in a storage drum can be stored on the inner wall (individual Webs) the flexible material creates and the storage drum in a storage rack is rotatably mounted. Outside the storage drum and the storage rack is a drive device consisting of two rollers arranged with which the strand-shaped material, here a rigid cable, on the storage drum is pushed. The strand-like material is here, however only after exiting the storage drum and only after Leaving the storage rack over a very small section by means of a non-positively acting drive means on the strand-like material driven, the drive only for winding the strand-shaped Material is provided.

Finally, from US 49 44 465 a device for driving and Winding a plumbing and sewer cleaning tool known, which has a storage drum, on the inner wall of which is flexible Leaning on material. This storage drum is rotatable on an L-shaped Bearing arranged and centrally has an exit for a strand-shaped Material on. A drive device is arranged on a second bearing, which consists of two friction disks arranged on parallel axes, which are arranged at a distance from one another, the distance being somewhat less than is the diameter of the strand material. At least one of these Friction discs are driven to the strand-like material in the Reel in storage drum. But it can be seen that the strand-shaped Material from its plane to the winding direction very strongly in one direction is bent at right angles to the plane of the winding direction in order to to supply strand-like material to the drive device. With such a However, it is necessary to arrange one according to the properties of the stranded material to use large storage drum allow allowable kinking.

Starting from this prior art, the object of the invention based on further developing a generic device such that the Picking up and pulling off the flexible, strand-like material also facilitated, in particular with less force, when large lengths of material have to be wound up or unwound.

The solution to this problem provides that the drive means between the exit from the storage drum and the exit from the Housing or within the space described by the storage rack is arranged.

Accordingly, the invention provides that the strand-shaped Material in the area of the housing or  Bearing force acts over a partial distance, which the movement of the strand-like material during manufacture pull out of the housing or the storage drum or when inserting the same in the housing or Storage rack, supported. This force acts frictionally on the strand-like material, being in front preferably such drive means are used that in essentially almost slip-free or with very little Slip work.

It has proven to be advantageous here that To design drive means as endless drive belts, which revolves over at least two pulleys, whereby at least one pulley on the axis of rotation rotatably attached and at least one pulley is driven. Thus, for example, a first pulley can be featured be seen, for example, rotatably on the axis of rotation the storage drum or one parallel to it fenden axis is attached and a drive belt over a part of the circumference is wrapped. The drive belt then runs over a second pulley with one Drive is provided. By turning the second belt pulley becomes the first pulley over the drive belt driven, the drive belt rubbing the driving force transfers conclusively to the strand-shaped material, d. H. that the strand-like material so to the drive belt runs that the movement of the drive belt in essence lichen slip-free or at least with very little slip transfers to the strand-shaped material and the off and Aids in winding the strand-like material.

The strand-like material is preferably over one Partial circumference of at least one pulley between the Pulley and drive belt arranged so that the strand material on the one hand on the pulley rests and on the other hand covered by the drive belt is, so that the tension of the drive belt at least  partially transferred to the pulley via the strand-like material. At In this embodiment, the drive belt transmits the driving force over the strand-like material on the pulley, creating a substantially slip-free movement of the strand material with the pulley and given the drive belt.

The drive belt can be used as a toothed belt and at least one pulley Toothed lock washer. However, it is advantageous here if both the one and the other pulley are designed as toothed pulleys. The power transmission between the drive belt and the pulleys takes place in this embodiment, so that here from a slip-free drive arrangement can be assumed.

According to an advantageous embodiment of the invention it is provided that the second pulley on a spaced from the axis of rotation Axis is arranged within the housing or the frame. Preferably, the pulley is non-rotatably attached to the axle driven.

According to a development of the invention, it is provided that the drive belt revolves over two pulleys with different diameters and that preferably the pulley with the smaller diameter is driven. This creates a gear ratio that the Drive a, for example, having a large diameter Pulley facilitated, the force to be reduced and the Can be increased.

Preferably, the one arranged on the axis of rotation in a manner fixed against relative rotation Pulley on a diameter that is essentially equal to that Diameter of the storage drum matches, so that from the Storage drum on this pulley stranded material is only bent in an area that the maximum bending possibilities of the  strand material does not exceed. The straps disc is thus on the strand-shaped material or the storage drum, especially its diameter, abge true and does not exceed the outer diameter the storage drum.

Each pulley preferably has a U-shaped cross section. shaped guide groove for the drive belt, which is arranged circumferentially. As a result, the belt has disc in its circumferential area two radially aligned plate-shaped elements on both the drive belt and also that for example between the drive belt and the Guide pulley arranged strand material.

When using a toothed belt it is provided that in lateral edge area of the guide groove tooth elements are arranged in the corresponding teeth of the drive intervene mens. There is a possibility that tooth elements only on one side of the guide groove are arranged. However, it is advantageous see that on each plate-shaped element the belt slice is arranged a row with tooth elements, wherein the strand-like element between the tooth elements to be led.

Another improvement in the leadership of the strand-shaped Material on the peripheral surface of the drive belt achieved in that in the groove bottom of the guide groove in Cross-section essentially semicircular Recess is arranged, the radius of which corresponds to the radius of the strand-like material essentially coincides. Alternatively, it can be provided that the drive belt on its surface facing the pulleys an im Cross-section essentially semicircular Has recess whose radius is equal to the radius of the strand material essentially coincides. Self ver Of course, a third alternative is that both  the drive belt at the previously specified location as well the pulley at the previously specified location have a semicircular recess, so that the strand-like material on the one hand in the recess the pulley and on the other hand in the recess of the Driving belt frictionally with the respective components connected is. It is assumed that the flexible, strand-shaped material a circular Has cross section. In general, however, are also conceivable other cross-sectional shapes, for example a square one Cross-sectional shape, in which case the recesses in drive men and pulley are adjusted accordingly.

The strand-like material wraps around the pulley preferably with a wrap angle between 180 ° and 280 °. They are therefore larger or smaller Wrap angle as well as a multiple wrap at at least one but also both pulleys possible. For Guide of the strand-like material is provided that the strand-like material before and / or after reaching the covered in a strand by the strand-like material gene pulley is guided in a guide tube. To the one becomes the strand-shaped material from the Spei chertrommel outgoing until reaching the recline led pulley in a guide tube. To the another, a guide tube is provided, which strand-like material when pulling out of the store drum immediately after leaving the pulley records and leads outside of the housing.

On the leading the strand-shaped material from the housing Guide tube is preferably an angled guide element attachable, which rotates on the guide tube is held so that the strand-like material also is performed in an area outside the housing, so that an easier introduction of the strand-like material for example, in a cable pipe is guaranteed.  

According to a further development of the invention it is provided that the strand-shaped material from the housing leading guide tube to the side the drive belt, preferably between the drive belt and the Storage drum is arranged. The strand-like material thus becomes his leaving the pulley in a guide tube, which in substantially parallel to the drive belt section between the two Pulleys run. It is provided that the strand-like Material is deflected into the interior of the housing.

In a further development of the device according to the invention provided that the drive belt was moved manually via a pulley, is preferably driven by a hand crank. When using a flexible, strand-like material with a larger cross section or a larger winding or unwinding length, it has proven to be advantageous proven to drive the drive belt via a pulley, in particular to be driven by electric motor or hydromotor. Here you can choose between a corresponding electric motor or hydraulic motor and the driven pulley a gear, especially an angular gear, be provided with the desired gear ratio that is even Pulling or winding the strand material allows.

When arranging the storage drum in a storage rack, it has proven to be proved advantageous, the strand-shaped material over an outside of To guide roller arranged storage rack. Furthermore, it is with this Embodiment advantageous to design the storage drum as a cage, which several, at least three, preferably four to six, in cross section L or Has U-shaped holding arms and is rotatably mounted in the storage rack. By designing the storage drum as a cage, in particular one Material and therefore also a weight  Saving the construction elements of the device according to the invention achieved.

According to a further feature, it is provided that the strand-like material partially wrapped around the pulley an axis is arranged which is parallel and offset to the axis of rotation in Storage rack is arranged.

It is preferably formed in at least one pulley Guide groove slightly narrower than the width of the drive belt, causing there is an improved power transmission between the drive belt and the Pulley results. The drive belt preferably consists of a elastic, especially highly elastic material, which has a high Has static friction coefficient. It is also advantageous provided that the outer surfaces of the pulleys and / or the Guide grooves of the pulleys with a support or lining are provided with an elastic material with which the transmission of a high static friction is possible. In this embodiment, a improved power transmission between drive belt and pulley. The elastic material of the pulley and / or the drive belt can have a profile to prevent slippery contamination of the to penetrate strand-like material and the displaced dirt or Fluid a way to escape into the spaces between the profiling Offer.

It has proven to be advantageous here between the drive belt and the Pulleys to set a high surface pressure, which also on the Soiling of the strand-like material acts and this Soiling in particular in the profiling of the elastic material repressed.  

The drive belt, which preferably via tape guide elements, such as Edges, eyelets, hooks, rollers, pipes, sliding surfaces, sliding blocks, sliding pads, Fluid bearings, roller bearings or the like is performed, which with or without loading Layering with a low frictional resistance can be used as Flat belts with or without profiling, especially one Belt pulley facing teeth. It is also possible that the drive belt at least in a section as a chain is formed, which section is arranged in particular in the area which does not come into contact with the strand-like material. The chain can but also on the side facing the strand-like material Have rubber pads that have direct contact between the chain and the strand-like material and any associated with it Prevent damage to the strand material.

It is further provided that at least one clamping element, preferably one Tensioner pulley in the area of the drive belt is switched on. Another An alternative to the tension pulley is, for example, an elastic one Tensioning element, which is preferably between a chain-shaped section and a drive belt section is turned on. The drive belt also runs preferably via at least one deflection roller.

According to a further advantageous embodiment of the invention, that in the area of the running or running on the pulley Drive belt pressure rollers are arranged to lift the drive belt and / or the strand material from the pulley in it Prevent the area and threading the strand material between the pulley and the drive belt and / or in the guide tubes enable manipulation-free. This configuration makes it complex Avoided repairs that are necessary when that strand-shaped  Material has been completely pulled into the storage drum and now for a new operation is to be reinserted into the guide tubes. The stranded material is then threaded into the guide tubes through the appropriately trained, preferably one in the lateral surface trained guide groove pressure rollers.

Furthermore, according to a feature which further develops the invention, that the storage drum and the pulley on a common Axis of rotation are stored. With this configuration there are friction losses by reducing the relative movements of the storage drum Pulley reduced. The tendency of the drum to spin then leads to Unwinding the strand material to a pressure between the drum and the pulley, when pulling the strand material a tensile stress between the drive belt and storage drum is called.

To achieve a larger wrap angle of the drive belt, you can be provided in an advantageous manner that the drive belt over several Deflection rollers is guided in a loop. Furthermore, as an alternative be provided that the pulley or the pulleys on The outer circumference of the same is or are stored. In this case it is not necessary to store the pulley on an axis so that the con structural design of the device, in particular with regard to the Storage of the storage drum, which is preferably replaceable is designed, is simplified.

In addition, other devices and facilities are provided that serve to facilitate the handling of the device according to the invention. For example, at the end of the strand-like material Recognition  direction may be provided, for example as a view Sensor is formed and the drive of the belt disc turns off as soon as the detection device on a certain point within the guide tubes is introduced. But other end stops can also be used tion devices are provided, for example, the End of strand material over the turn determine the number of storage drums.

In addition, different drive variants are conceivable. For example, the drive can be directly connected to that of the Spei adjacent pulley. But it is also conceivable that both pulleys a receptacle for have a reversible crank handle. Such recordings can, for example, with an internal toothing forms his with an external toothing of the hand cooperate crank axis. In addition, between the Drive and the driven pulley a gear Gear can be provided with which the torque of the Drive can be positively transferred to the pulley is, with the gear transmission also a certain one Gear ratio, depending on the drum diameter and the associated absorption capacity of the strand-like material is adjustable. Are conceivable here a variety of gear drives, such as bevel gear gears, worm gears or planetary gears, whereby then the ring gear of the planetary gear as the only one Traction wheel works.

The drive belt can also at least in the area guided between the pulleys in guide elements to keep the drive belt dirty to avoid. It is also conceivable that the drive belt at least in the area between the pulleys over a Variety of small diameter rolls that runs as Pressure elements act.

A more detailed explanation of the invention follows from the following Description of the accompanying drawing, in the preferred Embodiments of the device according to the invention are shown. In the Show drawing:

Figure 1 shows a first embodiment of a device for receiving and pulling a resilient strand-like material in a partially sectioned front view.

FIG. 2 shows the device according to FIG. 1 in a partially sectioned rear view;

Fig. 3 shows the apparatus according to Figs 1 and side view shown in a cut. 2;

Fig. 4 shows a second embodiment of an apparatus for receiving and extracting a flexurally elastic strand material in a side view;

FIG. 5 shows the device of FIG 5 in a plan view.

Fig. 6 shows a first embodiment of a pulley with a drive belt in a sectional side view;

Fig. 7 shows a second embodiment of a pulley with a drive belt in a sectional side view and

Fig. 8 shows a third embodiment of a pulley with a drive belt in a sectional side view.

A device for picking up and pulling off a flexible, strand-like material 1 consists of a storage drum 2 , on the inner wall 3 of which the flexible material 1 bears. The storage drum 2 is rotatably mounted in a housing 4, the housing 4 has a rotation axis 5, on which the storage drum rotatably disposed between two nuts 6. 2

The storage drum 2 consists of two shells 7 which are essentially U-shaped in cross section and have a circumferential flange 8 at their edge region. Each flange 8 has a plurality of holes distributed over the circumference, not shown in the drawing, into which screw bolts, not shown, are inserted, onto which nuts, not shown, are screwed, so that the two shells 7 are screwed together in the region of the two flanges 8 .

The housing consists of a frame 9 having a wall enclosing the storage drum 2 . A partition 10 is arranged in the frame 9 , which divides the housing 4 into two sections 11 and 12 . The two sections 11 and 12 are covered with side walls 13 and 14 , the side wall 13 , which covers the section 12 of the housing 4 , having an opening 15 . The axis of rotation 5 is mounted in the partition 10 .

In the section 12 a pulley 16 is arranged on the rotation axis 5 and rotation with the axis of rotation 5 ver prevented. The pulley 16 is U-shaped in cross-section in its circumferential surface area and accordingly has two plate-shaped elements 17 . Arranged between the plate-shaped elements 17 is a drive belt formed as a toothed belt 18 , which wraps around the pulley 16 over a partial circumferential area. The toothed belt 18 has on its surface facing the pulley 16 a plurality of teeth 19 which engage in corresponding tooth elements 20 which are arranged on both sides of the plate-shaped elements 17 on the circumferential surface of the belt disk 16 at a uniform circumferential distance.

As can be seen in particular from FIG. 1, a second axis 21 is arranged in the housing 4 , on which a second pulley 23 driven by a hand crank 22 is mounted, which is wrapped around the toothed belt 18 over a partial circumferential region. The pulley 23 is also designed as a toothed pulley, which has a plurality of teeth which correspond with the teeth 19 of the toothed belt 18 . The hand crank 22 is fixed in a rotationally fixed manner on the axis 21 , the axis 21 passing through the opening 15 .

The pulley 23 has a diameter that is significantly smaller than the diameter of the pulley 16 . The diameter of the pulley 16 essentially corresponds to the inside diameter of the storage drum 2 .

As can be seen from Fig. 3, the strand-shaped material 1 leaves the storage drum 2 by running into a guide tube 24 , from where the material 1 , which consists of glass fiber plastic with a polypropylene sheathing and designed as a push and pull wire is, runs onto the pulley 16 between the two plate-shaped elements 17 and comes under the toothed belt 18 . The strand-like material 1 is clamped between the belt pulley 16 and the toothed belt 18 by the pretensioning of the toothed belt 18 , a frictional connection being produced between the toothed belt 18 and the material 1 and between the material 1 and the belt pulley 16 .

The strand-like material 1 wraps around the pulley 16 in an angular range of approximately 260 ° before the strand-like material 1 immediately after leaving the peripheral surface of the pulley 16 runs into a guide tube 25 , which the strand-like material 1 laterally next to the pulley 23 , between the partition 10 and the drive belt 18 , leads from where the strand-shaped material 1 is led out of the housing 4 . An angled guide element 26 is rotatably fitted onto the free end, ie the end of the guide tube 25 protruding out of the housing 4 .

It can also be seen from FIGS. 1 to 3 that a handle 27 is arranged on the housing 4 . Finally, FIG. 3 also shows the drive shaft 28 , which connects the hand crank 22 to the pulley 23 or the axis 21 .

In Figs. 4 and 5, a second embodiment of the device according to the invention, which differs from the first embodiment shown in FIGS. 1 to 3 that the flexurally elastic, string-shaped Mate is rial 1 is disposed in a recess formed as a cage 30 storage drum. The cage 30 consists of several cross-section substantially U-shaped holding arms 31 which are attached at one end to an axis of rotation 32 and are arranged in a uniform section on a circular path.

The axis of rotation 32 is mounted in a storage rack 33 in which the cage 30 can be rotated.

In the storage rack 33 there is also a further axis 34 which is offset from the axis of rotation 32 and on which a pulley 16 is fastened in a rotationally fixed manner. The belt pulley 16 is wrapped by a drive belt 35 in a partial circumferential area. The drive belt 35 also loops around a second, smaller diameter pulley 23 , which is also mounted on an axis 36 in the storage rack 33 . The axis 36 is driven here by an electric motor 37 with an upstream gear 38 .

The material 1 withdrawn from the cage 30 runs in the lower region of the pulley 16 onto the peripheral surface of the pulley 16 and is clamped between the pulley 16 and the drive belt 35 , so that the material 1 is frictionally connected to the drive belt 35 and the pulley 16 . The material 1 wraps around the belt pulley 16 in the same angular range as the drive belt 35 before the material 1 leaves the circumferential surface of the belt pulley 16 and is guided via a guide roller 39 , for example fed to an empty cable pipe. The guide roller 39 is also arranged in the storage rack 33 .

The above-mentioned device is particularly suitable for those applications in which large lengths of the flexible, strand-like material 1 have to be rolled up or unrolled. In particular, the laying of underground cables in appropriate cable conduits should be considered.

In Figs. 6 to 8 show various configurations of the pulley 16 and the toothed belt 18 or the drive belt 35 are shown.

In FIG. 6, a first embodiment is shown, wherein the toothed belt 18 has a semi-circular and the outer contour of the material 1 adapted recess 40 in the region of its teeth 19. The second embodiment shown in FIG. 7 provides a recess 41 in the groove base of the circumferential groove formed between the elements 17 in the outer peripheral region of the pulley 16 .

Finally, FIG. 8 shows a third embodiment in which recesses 40 and 41 are arranged both in the drive belt 35 and in the groove base of the groove formed between the elements 17 , which recesses are provided in their cross-sectional shape according to the outer contour of the material 1 .

Reference list

1

material

2nd

Storage drum

3rd

Inner wall

4th

casing

5

Axis of rotation

6

mother

7

Bowl

8th

flange

9

frame

10th

partition wall

11

section

12th

section

13

Side wall

14

Side wall

15

opening

16

Pulley

17th

element

18th

Timing belt

19th

tooth

20th

Tooth element

21

axis

22

Hand crank

23

Pulley

24th

Guide tube

25th

Guide tube

26

Guide element

27

Handle

28

drive shaft

30th

Cage

31

Holding arm

32

Axis of rotation

33

Storage rack

34

axis

35

Drive belt

36

axis

37

Electric motor

38

transmission

39

Leadership role

40

Recess

41

Recess

Claims (37)

1. Device for receiving and pulling off a flexible, strand-like material ( 1 ), in particular a push and pull wire, preferably of circular cross-section, in particular made of fiberglass, preferably for pulling in cables, light conductors and / or other lines in cable or line protection tubes or empty tubes, with a storage drum ( 2 ) on the inner wall ( 3 ) of which the flexible material ( 1 ) rests, and a housing ( 4 ) or a storage rack ( 33 ) in which an axis of rotation ( 5 , 32 ) for rotatable mounting of the storage drum ( 2 ) is arranged, the strand-like material being drivable at least over a partial section by means of a non-positively acting drive means and the drive direction running parallel to the plane of the direction of rotation of the storage drum, characterized in that the drive means between the outlet from the storage drum ( 2 ) and the outlet the housing e or is arranged within the space described by the storage rack ( 33 ). 2. Apparatus according to claim 1, characterized in that the drive means is designed as an endless drive belt ( 18 , 35 ) which rotates over at least two pulleys ( 16 , 23 ), with at least one pulley ( 16 ) on the axis of rotation ( 5 ) rotatably is fastened and at least one pulley ( 23 ) is driven. 3. Apparatus according to claim 2, characterized in that the strand-like material ( 1 ) is arranged over a partial circumference of at least one pulley ( 16 ) between the pulley ( 16 ) and the drive belt ( 18 , 35 ). 4. The device according to claim 2, characterized in that the drive belt is designed as a toothed belt ( 18 ) and at least one pulley ( 16 ) as a toothed disc. 5. The device according to claim 1, characterized in that the second pulley ( 23 , 35 ) on a spaced from the axis of rotation ( 5 , 32 ) arranged axis ( 21 ; 36 ) within the housing ( 4 ) or the bearing frame ( 33 ) arranged is. 6. The device according to claim 5, characterized in that the on the axis ( 21 ; 36 ) rotationally fixed pulley ( 23 ) is driven. 7. The device according to claim 2, characterized in that the drive belt ( 16 , 35 ) rotates over two pulleys ( 16 , 23 ) with different diameters and that preferably the pulley ( 23 ) is driven with the smaller diameter. 8. The device according to claim 2, characterized in that on the axis of rotation ( 5 ; 32 ) rotatably arranged pulley ( 16 ) has a diameter which corresponds substantially to the diameter of the storage drum ( 2 ). 9. The device according to claim 2, characterized in that each pulley ( 16 , 23 ) has a cross-sectionally U-shaped guide groove for the drive belt ( 18 , 35 ) which is arranged on the circumferential side. 10. The device according to claim 9, characterized in that tooth elements ( 20 ) are arranged in the lateral edge region of the guide groove, which mesh with corresponding teeth ( 19 ) of the drive belt ( 18 ). 11. The device according to claim 9, characterized in that in the groove base of the guide groove a cross-section substantially semicircular recess ( 41 ) is arranged, the radius of which coincides with the radius of the strand-like material ( 1 ) substantially. 12. The apparatus according to claim 2, characterized in that the drive belt ( 18 , 35 ) on its the pulleys ( 16 , 23 ) facing surface has a cross-section substantially semicircular recess ( 40 ), the radius of which corresponds to the radius of the strand-like material ( 1 ) essentially coincides. 13. The apparatus according to claim 2, characterized in that the strand-like material ( 1 ) wraps around the pulley ( 16 ) with a wrap angle between 180 ° and 280 °. 14. The apparatus according to claim 2, characterized in that the strand-like material ( 1 ) before and / or after reaching the looped pulley ( 16 ) a guide tube ( 24 , 25 ) is guided. 15. The apparatus according to claim 14, characterized in that on the, the strand-shaped material ( 1 ) from the housing ( 4 ) leading guide tube ( 25 ) an angled guide element ( 26 ) can be plugged, which is rotatably held on the guide tube ( 25 ) and can preferably be locked on the guide tube ( 25 ). 16. The apparatus according to claim 14, characterized in that the strand-like material ( 1 ) from the housing ( 4 ) leading guide tube ( 25 ) laterally next to the drive belt ( 18 ), preferably between the drive belt ( 18 ) and the storage drum ( 2 ) is arranged. 17. The apparatus according to claim 2, characterized in that the drive belt ( 18 ) via a pulley ( 23 ) manually, preferably via a hand crank ( 22 ), is driven. 18. The apparatus according to claim 2, characterized in that the drive belt ( 35 ) via a pulley ( 23 ) is driven by a motor, in particular by an electric motor or hydromotor. 19. The apparatus according to claim 2, characterized in that the strand-like material ( 1 ) is guided over a roller ( 39 ) arranged outside the storage rack ( 33 ). 20. The apparatus according to claim 2, characterized in that the storage drum is designed as a cage ( 30 ) which has several, at least three, preferably four to six, in cross-section L-shaped or U-shaped holding arms ( 31 ) and rotatable in the storage rack 33 ) is stored. 21. The apparatus according to claim 2, characterized in that the belt-shaped material ( 1 ) partially wrapped around the pulley ( 16 ) is rotatably arranged on an axis ( 34 ) which is arranged parallel and offset to the axis of rotation ( 32 ) in the bearing frame ( 33 ) is. 22. The apparatus according to claim 9, characterized in that the guide groove formed in at least one pulley ( 16 , 23 ) is slightly narrower than the width of the drive belt ( 18 , 35 ) and / or the strand-like material ( 1 ). 23. The device according to claim 1, characterized in that the drive belt ( 18 , 35 ) consists of an elastic, in particular highly elastic material which has a high coefficient of static friction. 24. The device according to claim 9, characterized in that the lateral surfaces of the pulleys ( 16 , 23 ) and / or the guide grooves are provided with a support or lining made of an elastic material which has a high coefficient of static friction. 25. The device according to claim 23 and / or 24, characterized, that the elastic material has a profile. 26. Device according to one of claims 1 to 25, characterized in that there is a high surface pressure between the drive belt ( 18 , 35 ) and the pulleys ( 16 , 23 ). 27. The device according to one of claims 1 to 26, characterized in that the drive belt ( 18 , 35 ) on tape guide elements such as edges, eyes, hooks, rollers, pipes, sliding surfaces, sliding blocks, sliding pads, fluid bearings, roller bearings or the like with or without Coating made of Teflon, PVC, PE or V2A or the like is performed. 28. The device according to claim 1, characterized in that the drive belt ( 18 , 35 ) is designed as a flat belt with / or without profiling, in particular one of the toothed pulleys ( 16 , 23 ) facing. 29. The device according to claim 1, characterized in that the drive belt ( 18 , 35 ) is formed at least in a partial section as a chain. 30. Device according to one of claims 1 to 29, characterized in that at least one tensioning element, preferably a tensioning roller is provided, which is preferably integrated in a pulley ( 16 , 23 ). 31. The device according to one of claims 1 to 30, characterized in that at least one deflection roller is provided, via which the drive belt ( 18 , 35 ) runs. 32. Device according to one of claims 1 to 31, characterized in that the storage drum ( 2 ) is detachably arranged in the housing ( 4 ). 33. Device according to one of claims 1 to 32, characterized in that a limit switch which shuts off the drive is provided, which can preferably and preferably be activated both when the end position of the unwound strand-like material ( 1 ) and the end position of the drawn-in material ( 1 ) is designed to work electrically, in particular inductively, capacitively or conductively. 34. Apparatus according to claim 1, characterized in that pressure rollers are arranged in the area of the drive belt ( 18 , 35 ) running or running onto the pulley ( 16 ), which lift off the drive belt ( 18 , 35 ) and / or the strand-like material ( 1 ) prevent the pulley ( 16 ) in this area and allow threading of the strand-like material ( 1 ) between the pulley ( 16 ) and the drive belt ( 18 , 35 ) and / or into the guide tubes ( 24 , 25 ) without manipulation. 35. Apparatus according to claim 1, characterized in that the storage drum ( 2 ) and the pulley ( 16 ) are mounted on a common axis of rotation ( 5 ). 36. Apparatus according to claim 1, characterized in that the drive belt ( 18 , 35 ) is guided in a loop over a plurality of deflection rollers. 37. Apparatus according to claim 1, characterized in that the pulley ( 16 , 35 ) or the pulleys ( 16 , 23 , 35 ) is or are mounted in rollers lying on the outer circumference thereof.